Bug 2498793

Summary: CVE-2026-59874 openbao: Node-tar: Denial of Service via malformed tar archive header [fedora-all]
Product: [Fedora] Fedora Reporter: Jon Moroney <jmoroney>
Component: openbaoAssignee: Dave Dykstra <dwd>
Status: CLOSED NOTABUG QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: rawhideCC: dwd, go-sig
Target Milestone: ---Keywords: Security, SecurityTracking
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["c8ec3acf-ec5f-4a98-a332-30dff12b19dd"]}
Fixed In Version: Doc Type: ---
Doc Text:
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Clone Of: Environment:
Last Closed: 2026-07-13 18:40:18 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 2498116    

Description Jon Moroney 2026-07-09 21:59:29 UTC 
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

node-tar is a tar archive manipulation library for Node.js. Prior to 7.5.18, tar.replace accepts a checksum-valid tar header with a negative base-256 encoded entry size, causing the archive scanner to make no progress while repeatedly parsing the same header. This issue is fixed in version 7.5.18.
Comment 1 Dave Dykstra 2026-07-13 18:40:18 UTC 
https://bugzilla.redhat.com/show_bug.cgi?id=2498757